GDR453 - Refrigerant Gas Detector with Display and Remote Sensor
The GDR453 is an industrial gas detector with a remote sensor, designed for installations where it is necessary to separate the sensor unit from the main body. It supports all standard signals (analog, Modbus, relays) and include… See more...
The GDR453 is an industrial gas detector with a remote sensor, designed for installations where it is necessary to separate the sensor unit from the main body.
It supports all standard signals (analog, Modbus, relays) and includes Bluetooth for configuration and diagnostics.
Compatible with refrigerant gases and CO2, it is ideal for complex systems or critical environments.
Standard Specifications
Power supply: 12–24 Vac/Vdc (100–240 Vac on request)
Outputs:
- Analog: 4–20 mA, 1–5 V, 2–10 V
- Digital: Modbus RS485
- 3 Relays (2 alarm, 1 fault)
Acoustic alarm: 80 dB buzzer at 10 cm
Remote sensor: up to 3 meters distance
Compatible sensors:
- Electrochemical (NH₃)
- Infrared (CO₂, R134a, R404a, R407c, R410a, R507, R449a, R32, R290, R600)
- Pellistor (R290, R600)
- Semiconductor (R134a, R404a, R407c, R410a, R507, R449a, R32)
Measurement range:
- Electrochemical: 0–1,000 ppm
- Infrared: up to 50,000 ppm or 5% Vol
- Pellistor: 0–100% LFL
- Semiconductor: 0–1,000 ppm
Operating temperature: -40°C to +60°C (depending on sensor)
Protection rating: IP67
Sensor cartridge: Replaceable
Bluetooth:
- Real-time measurement
- Calibration and electrical testing
- Relay and Modbus configuration
- Display of electronic data, serial number, and firmware
Options
NH3: GDR453EA, GDR453EAH
R290/R600: GDR453PX (pellistor), GDR453I8/I9 (IR)
CO2 (IR): GDR453IC25, IC210, IC220, IC250
Other gases (IR):
- R134a (I1), R404a (I2), R407c (I3), R410a (I4), R507 (I5), R449a (I6), R32 (I7)
Semiconductors: GDR453S1–S7
Custom versions: GDR453IX, SX, PX
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